I confess to eagerly listening to M13’s “music” while tuning out M92. Since 1970, when I first began observing, I’ve paid homage to M13 on countless summer evenings. During that same time, I doubt I’ve visited M92 more than a dozen times.
A tale of two clusters
August 2011: A secluded spot in the sky causes many to overlook a second great globular in Hercules.